package exception;

import java.io.FileNotFoundException;

public class ThrowDemo {
    public static void main(String[] args) {
        Student zs=new Student();
        try {
            zs.setAge(-2000);
        } catch (IllegalAgeException e) {
            e.printStackTrace();
        }
        System.out.println("年龄为"+zs.getAge()+"岁");
        String line=null;
        System.out.println(line.length());
    }
}
